72065120566552 has 16 divisors (see below), whose sum is σ = 135122258288160. Its totient is φ = 36032518356384.

The previous prime is 72065120566471. The next prime is 72065120566577. The reversal of 72065120566552 is 25566502156027.

It is a super-2 number, since 2×72065120566552² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72065120566552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2787618 + ... + 12324814.

It is an arithmetic number, because the mean of its divisors is an integer number (8445141143010).

Almost surely, 2^{72065120566552} is an apocalyptic number.

It is an amenable number.

72065120566552 is a deficient number, since it is larger than the sum of its proper divisors (63057137721608).

72065120566552 is a wasteful number, since it uses less digits than its factorization.

72065120566552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481730 (or 10481726 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 52.

The spelling of 72065120566552 in words is "seventy-two trillion, sixty-five billion, one hundred twenty million, five hundred sixty-six thousand, five hundred fifty-two".